Quick acting vise



June 30, 1931. A. J. YJAMESON QUICK ACTING VISE Filed 001;. 20', 1930 '2 Sheets-Sheet 1 June 30, 1931. A. J. JAMESON QUICK ACTING VISE Filed Oct; 20, 1930 2 Sheets-Sheet 2 rzmvzr.

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Assa J.JAMESO1\T, or wonens'rii-R, vrAssAoHUs EiiT's i ouioknorinevisn v f Application fiied'october'geo, 1930'. -Serial No. 489,775. i

The principal objects ofxthis invention are.

to provide a quick-'acting'vise, principally forluse by-woodworkers, by which the mo-: tion can be imparted to the movable jawin 6 a very quick way and-it can be disconnected readily so as to permit it to bepulled' out to freethe work;v to' provide positive means forholding the jaws closed and to provide an improved mechanism for operatinglthe vise. .Other objects and advantages of the inventionwill appear hereinafter.

Reference is; to be had to the, accompany ing. drawings in which r Fig. 1 is-a side viewof a vise constructed in accordance with this invention;

Fig. 2 is an end view as indicated by the arrow 2 in Fig. 1; e T 7 I Fig. 3 is anopposite endview as indicated by the arrow 3 in Fig. 1;

Fig. 5 is" aplan of the wise in the position shown in Fig. 1 and i 25 Fig. 6 is a plan ofthe operating handle and connected parts showing a portion of the frame in section. I The fixed jaw 10 of'the vise is made preferably as an integral part'of a stationary plate '11 which is fixed throughholes 12to a stationary base or 'frame, not shown. .On-

the bottom of the plate 11 is fixed by screws 13 a-rack 14. In a place near the front :of'

the plate 11 is an integral stop 15. The

' 3 stationarypart'justdescribed is'provided .with a curved ratchet bar 16 having slant.- ing teeth thereon. On the bottom of the plate 11 are longitudinal ways 17 formed preferably in lugs cast integrally with the plate. v i I In the ways runs a slide 18 which at its end is provided with a j aw "19' cooperating with'the jaw 10 to form the vise. This slide 18 is formed of two vertical sidesseparated.

from each other and secured together by an integral cross pin as 20 and also by a pin- 21 mounted free to. turn.-' Astop-scr'ew 22 is shown for the'purpose of engaging the.

stop 15 to prevent the movable jaw from 5 sliding all the way out. I

' Fig. 4: is a sectional view on the line thepin2l is'freely rotatably V a pinion or gear. 23 meshing with the Tack 14L at alltimes. This gear is normally free and'the rough adjustments of the movable I I members 19 of the vise are made by hand. '55 I x Then the vise'istightened up. by connecting I so, i

pivotally'mounted on'the pin. 2l;constituting said, movable element. This handle has a hand grip on the end and is' pr0vide d with aspring pawl 25 pivoted thereon and adapted to engagethe teeth'of thev rack 16. A

spring 26 bearingagainst a pin on the? handle 24 holds'this pawl in proper positionf to hold the handleupa's shown in full li nesfl inFigQ '1 but itlffcan be depressed by the thumb Where it sticks. out beyond the jaw 19 to tilt the pawl 25. upso that the pawl will be projected outbeyond the teeth and the handle can be moved from any point wardly to any desired points 5 r On the handle 24 is pivotallymounted a pawl 28.which .carriesja plate 29 extending? across under the two upright "parts ofthe: slide 18 when the handle is-lmoved up to its highest positiona iOtherwise this pawl is 39 held back. aboutrsit s pivot by gravityand a it isprovided with a spring 30 as willjap pear. On moving the handleback upward ly with the pawl25'out'ofengagement, the cross plate 29' will engage the upright walls of the'slide 18 and push the; pawl 28 backwardly, in opposition to the spring 30 to 11 remove the pawl: 28 *fromethe pinion and f. release the handle. Then, when'the handle is brought down with the pawl'25 now an gaging .the teetho'fthe bar 16 thespring X I 30 will force the pawl 28 intothe-teethofT thepinion'23. Furtherdownward mo vement of the'fhandle will turn the pinion and-cause K it to: roll; along thestationary rack l to the piece of work held'in the jaws. v

I Theioperation is. as follows:

Motionis impartedto the movable jaw I i i as stated by pressing; downwardlyfon the 1 handle 24 and causing the jaw 19 to move against the fixed jaw 10 with any desired degree of pressure. When the work has been secured in this way the movable jaw is held in position by the pawl 25 engaging the ratchet bar 16. To release the work sullicient downward pressure is applied to the handle 24 so that the pawl 25 can be released from the ratchet bar 16. In other words the handle 24 is depressed a little so that the end of the pawl 25 is just about to pass downwardly over a tooth, then the opposite end of the pawl 25 is depressed by the operator and the pawl is released from the ratchet bar. The handle 24 is then raised to its highest position. This brings the cross plat-e 29 into the position shown in Fig. 4 and disconnects the pawl 28 from the pinion 23. When the handle is in this posi ;tion, as shown in full lines in Fig. l, the movable jaw 19 is free to be moved in and out by moving the handle 2% horizontally to whatever position is needed to fully release or receive the work.

' This constitutes a vise which can be adjusted quickly by hand to engage the work and by which any desired amount of hand power can be used to force the jaws together with as much pressure as may be required. The vise is quickly and easily released and when so released is absolutely free so that the movable jaw can be moved back and forth at will. The construction is strong and durable and not expensive to build considering the work which it has to perform.

Although I have illustrated and described only one form 01 the invention 1 am'aware of the fact that modifications can be made therein by any person skilled in the art without departing, from the scope of the invention as expressedin the claims.

Therefore I do not wish to be limited in this respect but what I do claim is 1. In a vise, the combination with a stationary jaw in vertical position and a plate on which said jaw is mounted and located horizontally, a horizontal rack on the bottom of said plate, a slide guided on the bottom of said plate and movable parallel with the direction of the rack, a second jaw mounted on said slide for cooperating with the first jaw, a pinion rotatably mounted on the slide and meshing withthe rack, a handle oscillatably mounted on the slide, a pawl on the handle for engaging the teeth of the pinion, a plate carried by said handle and extending into a position to force the pawl out of the pinion teeth when the handle is moved to its limiting position and a spring for forcing the pawl into the teeth of the pinion when the pawl is free to move in that direction.

2. In a vise, the combination with a stationary jaw and a plate on which said jaw is mounted, a rack on said plate, a slide guided on said plate and movable parallel with the direction 01": the rack, a second jaw mounted on said slide for cooperating with the first jaw, a pinion rotatably mounted on the slide and meshing with the rack, a handle, a pawl on the handle for engaging the teeth of the pinion, a plate carried by said handle and extending into a position to force the pawl out of the pinion teeth when the handle is moved to its limiting position and a spring for forcing the pawl into the teeth of the pinion when the pawl is free to move in that direction.

3. In a vise, the combination of a stationary plate having longitudinal ways on its sides underneath, a jaw on said plate, a rack at the center of said plate between the ways, a slide having outwardly extending flanges fitting in said ways by which the slide is supported, a second jaw on said slide cooperating with the first named jaw, a transverse pin supported by the slide, a pinion fixed on said pin and meshing with the rack, whereby the turning of the pinion on its axis will move the slide along the plate, a handle pivotally mounted on the pin and carried by said slide, a pawl pivotally mounted on the handle and provided with a plate extending across the slide and adapt ed to engage the edges of the slide when the handle is moved to one extreme position, whereby when the plate engages the walls of the slide the pawl is moved backwardly away from the pinion, and a spring connected with the pawl for normally moving ii the pawl against the teeth of the pinion.

In testimony whereof I have hereunto afliXed my signature.

ALBERT J. JAMESON. 

